On the morning of December 8, Japan experienced significant heavy snow as a result of a strong winter pressure pattern affecting regions from Northern to Western Japan along the Sea of Japan coast. Tottori Prefecture specifically received a 'significant heavy snow information' alert from the Meteorological Agency, with reports indicating up to 30 cm of snow in the city of Yoshikata within a six-hour period. The Pacific side also saw widespread snowfall, accumulating 3 cm in the central district of Tokyo.

As of 7:38 AM on December 8, heavy snow warnings were issued for various regions, including Tokyo, Chiba, Aomori, Tochigi, Toyama, Kyoto, and Hyogo. The forecast indicated substantial snowfall across several areas in the coming 24 hours, predicting up to 80 cm in the Hokuriku region and 70 cm in the Kinki region. Snow totals in Kanto-Koshin area were also notable, with Uchihara in Tochigi recording 13 cm.

In response to the heavy snow, transportation services have been affected, with JR Tokai announcing speed reductions on the Tōkaidō Shinkansen due to snow, and potential delays or cancellations expected from JR East. The situation in Kanto is expected to continue with heavy snowfall at least until midday of December 9, impacting daily life and travel significantly across the region.